Compact Machines Room Persistence

Rooms are fully persistent:

• Everything built inside a room is saved with the world. Leave, save, quit, restart - re-enter and every block, item and machine is still exactly where you left it.
• Rooms survive their machine block. Breaking a bound machine block does not delete the room - the block keeps its binding, and admins can re-attach blocks to rooms at any time with unbind/rebind.
• Each room has a stable room code, the mod's address for that room in every command (tp, give existing, rebind).
• Rooms work identically in multiplayer: they are stored server-side, multiple players can be inside rooms at once, and the rooms find player lookup shows who is where.